ATP · Head to Head
Billy Harris vs Gabriel Diallo
In short
Billy Harris and Gabriel Diallo are tied in their head-to-head, 1–1. Most recent meeting: R32 – cinch Championships - London 2025, won by Gabriel Diallo (6-1 3-6 6-4).
Head-to-head in numbers
Wins by category and stats from the scores.
| Billy Harris | — | Gabriel Diallo |
|---|---|---|
| 0 | 500 | 1 |
| 1 | 250 | 0 |
| 3 | Sets won | 2 |
| 1 | Tie-breaks won | 0 |
| 0 | Deciding sets won | 1 |
All meetings
| Year | Tournament | Round | Winner | Score |
|---|---|---|---|---|
| 2025 | cinch Championships - London · 500 | R32 | Gabriel Diallo | 6-1 3-6 6-4 |
| 2024 | Infosys Hall of Fame Open - Newport · 250 | R32 | Billy Harris | 7-6(4) 7-5 |
Based on tournaments synced by youaretennis.com: the history grows over time.
Comparison
| Billy Harris | — | Gabriel Diallo |
|---|---|---|
| 249 | Ranking | 149 |
| 218 | Points | 375 |
| 31.7 | Age | 25.1 |
 United Kingdom | Country |  Canada |
| 3-8 | 2025 record | 25-23 |
| 0 | 2025 titles | 1 |
| 0 | Titles 2021-2025 | 1 |
Records and titles: Grand Slams, Masters 1000, ATP 500 and 250 (no ATP Finals or Challengers).
Recent form
The last 5 matches played.
Billy Harris
- L
vs Felix Balshaw · 7-6(6) 3-6 7-6(3)
Mouilleron-Le-Captif Challenger · R32 · 2026
- L
vs Murphy Cassone · 7-6(3) 6-4
St. Tropez Challenger · Round of 16 · 2026
- W
vs Nicolai Budkov Kjaer · 3-6 6-3 7-5
St. Tropez Challenger · R32 · 2026
- L
vs Ugo Blanchet · 7-5 7-6(4)
Rennes Challenger · R32 · 2026
- L
vs Moez Echargui · 7-5 1-6 7-6(2)
Cassis Challenger · Round of 16 · 2026
Gabriel Diallo
- L
vs Luciano Darderi · 6-4 2-3 ret.
National Bank Open - Montreal · R32 · 2026
- L
vs Lorenzo Sonego · 7-6(4) 4-6 7-6(4) 6-7(6) 6-2
Wimbledon - London · R64 · 2026
- W
vs Benjamin Bonzi · 1-6 4-6 7-6(5) 6-3 3-1 ret.
Wimbledon - London · R128 · 2026
- L
vs Jack Draper · 6-1 6-4
Lexus Eastbourne Open - Eastbourne · Quarterfinal · 2026
- W
vs Tomas Martin Etcheverry · 6-7(11) 6-3 6-2
Lexus Eastbourne Open - Eastbourne · Round of 16 · 2026